How to use the return on investment calculator
Find the percentage gain or loss on an investment from its cost and current value. Enter amount invested, current value in the fields above; the gain or loss, return on investment are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “return on investment ROI”, “percent gain on investment”, “profit percent calculator”, “calculate return on investment”, “find gain or loss”.
Formula
Variables
- cost — Amount invested ($)
- value — Current value ($)
Worked example
With amount invested = 1000 $, current value = 1250 $, the calculator gives gain or loss ≈ 250 $; return on investment ≈ 25 %.
Frequently asked questions
What is the return on investment calculator used for?
Find the percentage gain or loss on an investment from its cost and current value. It helps with questions such as “return on investment ROI”, “percent gain on investment”, “profit percent calculator”.
What is the formula for the return on investment calculation?
Gain or loss ($) = value-cost. Return on investment (%) = (value-cost) / cost × 100. Here cost is amount invested ($), value is current value ($).
What inputs do I need for the return on investment calculator?
You need amount invested in $, current value in $. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the return on investment calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the return on investment result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.